Explosive containing nitroglycerin.



' rap erm ne PATENT curios.

WALTER COSBY, OF SAN FRANCISCO. CALIFORNIA.

EXPLOSIVE CONTAINING NITROGLYGERIN.

No Drawing.

- To all whom it may concern:

Be it known that I, WALTER CosBY, a citizen of the United States, and resident of San Francisco, in the county of San Francisco and State of California, have invented certain new and useful Improvements in Explosives Containing Nitroglycerin, of which the following is a specification.

The present invention relates to explosives and more particularly to new and useful improvements in 'desensitizing compounds for nitro-glycerin and the like.

The primary object of my invention is to provide a new and improved composition of matter adapted forincorporation with nitro-glycerin whereby to render the same.

pound will appear from the following detail description and the claims.

It is, of course, well known to those skilled in the art that the globular normal condition of nitroglycerin accounts for the sensititeness of the nitro-glycerin and its liability of accidental ignition.

Referring specifically to the compound and its constituent parts I combine carbon tetrzuzhlorid (C(3 and carbon dichlorid (C (l the former being known as tetrachlorniethane and 'the latter being known as tetrachlorethene. The ingredients. mentioned may be either collectively or independently combined with nitro-glycerin.

The best form of my new explosive compound as determined by experiment, results from adding per cent. tetrachlormethane to 80 per cent. intro-glycerin, or the same proportions may be used by substituting tetrachlorethene for the tetrachlormethane. I have also found that a compound equally ellicient as the above may be prepared by Specification of Letters Patent.

- Application filed July 8, 1916. Serial No. 108,220.

Patented Nov. 21, 1916.

adding 20 percent. tetrachlormethane and tetrachlore'thene in relative proportions andv 80 per cent. nitro-glycerin.

The purposes of the tetrachlormethane and tetra-chlorethene are to destroy the globular condition in which sensitive n'itroglycerin usually is found also preventing flame propagation.

Iha-ve discovered by actual test that when nitroglycerin is combined with the ingredients of my invention accidental explosion is practically impossible. This Will be evident from the fact that by destroying the globular condition of normal nitro-glycerin I remove the danger of accidental explosion. It will, therefore, be seen that in the pro- -vision of my improved desensitizing. compound I afford means for rendering more safe the handling ofnitro-gl'ycerin and similar explosives without thegrediiction of efficiency of the explosive. 1

From the above description it is thought that a clear and comprehensive understanding of the constituent parts and the uses 6f my improved compound may .be had, and

while I have described a specific combina-" tion of, elements it is to be understood that I do not limit myself to the proportions set forth but reserve the right to make changes therein such as do not depart from the spirit and scope of the invention as claimed.

Having thus fully described my invention, what I claim as new and desire to secure by Letters Patent, is

1. An explosive compound consisting of nitroglycerin and tetrachlorethene in the manner and proportions set forth.

An explosive compound consisting of nitro-glycerin, 80 per cent. and tetrachlorethene, 20 per cent. e

3. An explosive compound consisting of nitro-glycerin, tetrachlormethane and tetrachlorethene, all combined in the manner and proportions set forth.

4. An explosive compound consisting of nitroglycerin, 80 per cent tetrachlormethane and tetrachlorethene; 20 per cent.'

In testimony whereof, vI affix my signature hereto.

\V ALTER COSBY. 

